Mark Snow, the composer best known for creating the haunting and iconic theme song for 'The X-Files,' has died at the age of 78. Snow's work on 'The X-Files' spanned over 200 episodes and became synonymous with the show's eerie and suspenseful atmosphere. Beyond his contributions to the sci-fi series, Snow also composed music for numerous other television series and specials, leaving behind a significant legacy in the world of television scoring. His distinctive sound will be remembered by fans of 'The X-Files' and television music enthusiasts alike.